Hey! I hadn't noticed that you linked to this picture until just now. Cool site! I built that thing for a Halloween sleepover party in Duluth while I was working a really slow day at Ritz Camera in the mall. It's made from two cardboard boxes, a ton of duct tape, and one balloon. My guests didn't see it until morning, when they saw its shadow on the curtains drawn over the window. They freaked. it was awesome.--Jess